# syntax=docker/dockerfile:1.6
#
# VYNDR Express backend (port 3001).
#
# Multi-stage build:
#   1. deps   — install production deps with a clean lockfile
#   2. runner — copy src/, poller/, scripts/, node_modules and start
#
# The Next.js frontend ships in a separate image (web/Dockerfile). PM2
# pollers run INSIDE this image and are auto-started by
# scripts/docker-entrypoint.sh so a Coolify redeploy reseeds them on
# every container start.
#
# Build:  docker build -t vyndr-api .
# Run:    docker run -p 3001:3001 --env-file .env vyndr-api

# --- deps stage ---
FROM node:20-alpine AS deps
WORKDIR /app

# package-lock.json is the source of truth — npm ci reproduces it exactly.
COPY package.json package-lock.json ./
RUN npm ci --omit=dev --no-audit --no-fund

# --- runner stage ---
FROM node:20-alpine AS runner
WORKDIR /app

# curl — /api/health smoke check (Coolify HEALTHCHECK).
# postgresql-client (pg_dump/pg_restore) + rsync + openssh-client + bash — the
# nightly DB backup. openssh-client (Session 64) is NOT optional: rsync shells
# out to `ssh` for any remote transport, and without it the off-box push dies
# with "Failed to exec ssh: No such file or directory" AFTER a successful dump —
# which reads like a network problem and isn't one.
# (scripts/backup-db.sh) runs INSIDE this container, where SUPABASE_DB_URL and
# the Supabase network are available. See docs/BACKUP-RUNBOOK.md.
RUN apk add --no-cache curl tini bash postgresql-client rsync openssh-client

# PM2 is installed globally so the entrypoint can call `pm2 start` to
# boot all three pollers (NBA / WNBA / MLB) alongside the Express API.
RUN npm install -g pm2@latest --no-audit --no-fund

ENV NODE_ENV=production \
    PORT=3001 \
    PM2_HOME=/app/.pm2

# Non-root user — the container should never run as uid 0 even if the
# host accidentally maps a privileged port.
RUN addgroup -S vyndr && adduser -S vyndr -G vyndr

COPY --from=deps /app/node_modules ./node_modules
COPY package.json package-lock.json ./
COPY src ./src
COPY poller ./poller
COPY scripts ./scripts
COPY supabase ./supabase
# Session 65 (P0) — content/ holds the Stark-line library + seed articles.
# It was NOT copied, so mediaEngine's module-load read threw ENOENT in the
# image and crashed the API at boot (the deploy silently rolled back for 14
# hours). The read is now hardened to optional too (belt AND suspenders),
# but the file belongs in the image.
COPY content ./content

# Persistent volume for JSONL training data (resolutions survive
# redeploys via the Coolify mount). PM2_HOME lives outside it so
# supervisor state is local to the container.
RUN mkdir -p /app/data/training /app/.pm2 /app/backups \
  && chown -R vyndr:vyndr /app/data /app/.pm2 /app/backups \
  && chmod +x /app/scripts/docker-entrypoint.sh

USER vyndr

EXPOSE 3001

# tini reaps zombies — important now that we spawn pm2 as a child of
# this entrypoint.
ENTRYPOINT ["/sbin/tini", "--"]

HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
  CMD curl -fsS http://127.0.0.1:3001/api/health || exit 1

CMD ["sh", "scripts/docker-entrypoint.sh"]
